Knot-tying implement.



No. 672,636. Patented Apr. 23, IQOI.

' H. D. COL MAN.

KNUT TYINGIMPLEMENT.

(Application Bled Feb. 20. 1901.; (No Model.)

4 Sheets-Sheet I.

TN: wams Pmns ou.. Puma-umu. 'vusumm'omp c.

N0'. 672,636. Patented Apr. 23, |90l. H. D.`COLMAN.

KNUT TYING IMPLEMENT.

(Application filed Feb. 20, 1901 (No Model.) 4 Sheets -$hee't 2.

unimi n Mn mi NoRmS PETERS mara-umu.. w'AsMmoToN, u, c.

Patented Apr. 23, 190|.

H. D. CDLMAN.

KNOT T YING IMPLEMENT.

Application mea Feb. 2o, 1901.,

4 Sheets-Sheet 3.

(N; Modal.)

Er .7 .r-Fs ...L Fi

l l a No. 672,636. Patented Apr. 23, 190|.

H. D. COLMAN. KNoT TYING IMPLEMENT.

(Application filed Feb. 20, 1901.|

(No Modell) 4 Sheets-'Sheet 4.

Tn: konnt PErERS w., moroLrmo.. wmumon. u c.'

`NETE STATES HOWARD D. COLMAN, OF ROCKFORD, ILLINOIS.

KNOT-TYING INIPLEIVI ENT.

SPECIFICATION forming part f Letters Patent No. 672,636, dated April 23,190] Application filed February 20, 1901. Serial No. 48,118. (No model.)

To cti/Z whom it may concern:

Be it known that I, HOWARD D. COLMAN, a citizen of the United States,residing at Rockford, in the county of Winnebago and State of-Illinois,have invented certain new and use-` ful Improvementsin Knot-TyingImplements, of which the following is a-specication.

One object of this invention is the produc-l tion of a hand-mountedmanually-operate knot-tying implement. i i

A further object is the improvement of knottying mechanism generally.

The embodiment herein shown of my in-` depending upon the tension ou thethreads and the friction of the latter in the stripperarm for holdingsaid threads in engagement with said arm. The implement is intended tobe worn constantly on the left hand of the operator and its mechanism tobe operated by a lever adapted to be engaged by the Fig. 4 is a detailView showing the position of the thread upon the tying-bill after theloose ends have been severed and the knot is about to be pulled off fromthe end of said bill by the stripper, Fig. 5 is a View after a fullrevolutionfrom Fig. 2 and just before the thread is pulled by thestripper from the clampingjaw of the tying-bill. Fig. 6 is a sideelevation of the mechanism, taken from the cam side of theimplement, theparts beingin their normal or starting positions. Fig. 7isasimilar viewtaken from the opposite side of the implement. mechanism.

Fig. 8 is a rear elevation of the Figs. 9 and 10 are sectional detailviews of the rotatable tying-bill and the cam-cylinder which operatesthe cutting and clamping jaw. Fig. 11 is a front end view of thecam-cylinder. Fig. 12 is a plan View of the sector cam-gear. Fig. 13 isa view of the stripper mechanism,showing it detached from the body ofthe implement; Fig. 14 is an enlarged detail view of the tying-bill.Fig. 15 is a transverse section through the threadholding arms E2 and F,showing the springlat-ch F5 and the surrounding parts in detail. Figs.16, 17, and 18 show a modified form of my knot-tying mechanism. Fig. 16is aside elevation, Fig. 17 a front elevation, and Fig. 18 a top planView, of the mechanism embodying said modification.

Like letters of reference indicate correspondin g parts throughout theseveral vie Ws.

In the construction of this implement I provide a standard A, having theintegral overhangiug arms A at its upper end and the transverse sleeveA2 at its lower end. A clip A2 surrounds said sleeve A2 and is adaptedto have frictional engagement with the outer surface oi' the sleeve bymeans of the clamping-screw A4. The clip A3 has a downwardlyextendingstem A5, intended to lie within a suitable opening in the handle A6 andbe held rigidly in position therein by the set-screw A7. The handle A6is provided with a han dle-strap A8 in loop form for surrounding thehand of the operator, and this loop is made adjustable in size in orderto fit the hand of any person. I have shown a buckle for providing thisadjustment; but any suitable means may be employed for this purpose. Itwill be noticed that the stem A5 may be turned with relation to thehandle A6 and the sleeve A2 in the clip A3 in order to secure anadjustment of the implement to accommodate it to hands of differentforms.

A shaft B is free to oscillate within the sleeve A2. At one end thisshaft is enlarged and there carries the thumb-fork B', frictionallysecured on the end of said shaft by its integral collar B2 and theclamping-screw B8. At its opposite end the shaft B carries the sectorcam gear B4, pinned to said shaft. The cam-groove B5 of the sectorcam-gear is cut in the peripheral face of the sector, and the teeth ofthe gear are of skew-gear form. The cam-groove B5 is of an outlinesomewhat resembling that of the letter U with its arms IOO the teeth ofwhich are skewed to corre-4 spond with 'those of the sector cam-gear B4.The pinion C is aiiixed to the shaft in any suitable manner. I haveshown it as frictionally engaging said shaft; but it may be positivelysecured theretoin anydesired way.

This pinion C is provided with a long hub to occupy wholly the spaceupon the shaft C between the supporting-arms A', and thus prevent endmovement of said shaft.

The forward end of the knetter-shaft C is attened on one of its sidesrand rbent substantially at right angles toits length, forming thetying-bill C2. being parallel with thatof the flattened surface of thetyingsbi-llvC2, is formed in said bill and said shaft C, and within saidslot ispiv otally mounted the shearing and clamping jaw C4. The lowerpart of this jawisEin wing form, adapted toiengage the interior wallsofthe cam-cylinder C5, 'which latter is rigidly mounted on the standard A.This earn-cylinder isset eccentric to the knetter-shaft C, and its innerform is slightly elliptical in order to produce the proper movement ofthe shearing and clamping jaw C4, the wing of` 1said jaw engaging saidinternal cam. Thev flattened side' of the tyingbill02 is provided with ashear edge within theslot C5 and the jaw C4, pivoted in said slot G5,vwith a corresponding shear edge. The opposite edge of said -jaw isrounded slightly, so that the latev ter will clamp, while the oppositeedge sevi ers the ends of the threads in ythe .tying-bill. :I .have nowdescribed the mechanism for forming the knot and cutting the thread. 1I,

will next describe thestripper mechanism.

`A supporting-plate Dis secured to the top of the standard A and isprovided with the fixed forwardly-extending 4guide-arm D for -thethreadRearwardof the guide-arm D `is the vertical bearing-sleeve D2, and nearthe opposite edge of the supportingplate -D isan upwardly-extendingreleasing-.stud D3 for a purpose to be mentioned later herein. Astop-stud D4 at the forward edge of the supportingplate4 limi-ts theforward move- 4ment-of the stripper mechanism.

latory shaft E is adaptedto'lie within Ithevertical bearing-sleeve D2,and this shaft carries the -two crank-arms E and E2, fixed 4to saidshaft.

The slot C5, its plane y 'ticity tends to hold thesaid arms apart.:stopstud D4limits the yforward lmovern ent of Anoscilcorrespondingpositive movement of the os cillatory shaftand thearms E2 and Et.

F is a thread-holding arm loosely mounted by means of its integral earsF on the oscillatory shaft E and having its outer portion F2 bent at anangle with the plane of the body portion thereof. T-heforward end of theouter portion F2 of said thread-holding arm is formed into a.rearwardly-extending guidearm F5 for the thread, between which arm andthe fingers E5 the thread is clamped during the last part of theknot-tying operation when the knot is being drawn tight and strippedfrom the tying-bill. The fingers E5 embrace the said outer portion F2 ofthe thread-holds ing arm F, onetinger lying on each side thereof. Aspring F4, coiled aboutthe oscillatory shaft E, .is att-ached' at itsends vto thearm E2 andthethread-holdingarrn =F,and"byits elas The thethread-holding arm F, and the an'tiffric- Mtion-roller E5 on thearnrE,engaging the `rear rand thel arm together,a spring coiled about thepivotal stud `Ften'ding to hold said latch in engagement with lthestud.T-heflatch F5 has an .integral arm F7 extending substantiallyat right`angles thereto, `and a pin F5, fixed in said arm F7, extends downwardthrough a Vslightlyelongated opening F9 in.

thelthread-holding arm F into a `position to4 be engaged by theupwardly-extending,Areleasing-stud D5, which stud bydelaying said pinrocks the latch :F5 on .its pivot and withdraws it from .itsengagementwfith rthe stud The pin .Fswhen so rocked lis at theend of theelongated opening-F9, and furtherrearward movement of the arm Fisthusstopped.

IIO

Thearrn E2, however, vmoves rearwardslightly farther to positivelypullthe fingers E5fron1 engagement with the guide-arm F5, between whichl'fingers and arm the thread is'wedged. X/Vhen this 4is done, the springF4 separates 4thearm E2 and the thread-holding arm F, the

for-mer seeking its rear .mostand -'the latter its vforemost position.The guide-arm F3 is formed a little thicker than the thread-holding armF, sothat while the fingers E5 slide freely on the body of said arm theywill tightly engage the guide-arm in order -there sto -rrnly grasp thethread.

In the operation of the implement the left hand of the operator isslipped within the' handle-strap A8, the loop being adjusted to the sizeof theoperators hand. The thumb is placed .with-in the thumb-fork B' andthe latter thrown in-to the position it is shown to occupy in Fig. 6,its highest position. The ends of the thread Yintended to be unitedlying side 'by side are then drawn with the right -hand of the operatorover the outer-vend F2 of the thread-holding arm F and the guidefork Bmoves the sector cam-gear B4, and

this rotates the knotter-shaft C by reason of its skew-gear engagement.The first quarter of a revolution of the tying-bill C2 turns it into theposition indicated in Fig. 2, the point of the bill lying over thethreads. During this quarter of a revolution of the knottershaft C the'sectorcam-gear B4 is turn ed, causing the roller E5 on the arm E' totravel outward a little distance in the cam-groove B5, oscillating theshaft E and moving forward the arm E2 and the pivotal arm E4, with itsclamping-fingers E5, the latter sliding forward one on either side ofthe outer portion F2 of the thread-holding arm F, as shown by Fig. 2Y ofthe drawings. Continued downward movement of the thumb-fork continuesthe forward movement of the clamping-fingers E5 until as the roller E5reaches the lowest point in the cam-groove B5 the fingers E5 coincidewith and embrace the outer end of the thread-holding arm F, clamping thethread between the fingers and the guidearm F5, and during the same timethe stud E is moved into engagement with the springlatch F5, locking thearm E2 and the threadholding arm F together, as shown by Fig. 3 of thedrawings. At this point the tying-bill has been rotated throughthree-quarters of a revolution, and by reason of the interiorconformation of the cam-cylinder C5 its shearing and clamping jaw C4 isopen, ready to receive the `thread during the next quarter-revolution.

Continued downward movement of the thu mbfork B throws the uptending orreturn side of the cam-groove B5 into contact with the roller E5, `andas the tying-bill is turned into the positions indicated in Figs. 4: and5 the threadholding arm F and the arm Egare thrown backward and outward,stripping the knot from the end ofthe tying-bill, the cam-surface withinthe cam-cylinder C5 having previously closed the shearing and clampingjaw C4 to cut off the threads and to hold the short ends thus formedwhile the knot is being stripped off the tying-bill by said backwardmovement ot' the clamping-lingers E5 with the threadholding arm F. Whenthe tying-bill-reaches the positionA indicated in Fig. 5, the ends ofthe thread will be pulled from the bill, and the pin F5, having nowengaged the releasingstud D3, further rearward movement of the arm E2causes the latch F5 to be disengaged from the stud E5 and the fingers E5to be withdrawn from the guide-arm F5, whereupon the spring F4 throwsthe thread-holdingr arm into its forward position against the stop-pinD4. The thread is now free to be withdrawn and the thumb-fork B is againthrown upward into its initial position, as indicated in Figs. 6, 7, and8. During this upward movement of the thumb-fork B the mechanism isoperated as just described, except that the knotter-bill is rotated inthe opposite direction. The arm E2and the thread-holding arm F will beengaged and moved backward together until the pin F8 encounters thereleasing-stud D5, when the latch F5 will release the stud E6, and thethread-holding arm F will be thrown into its forward position by thespring F4.

In the modified form shown in Figs. 16, 17, and 18 the construction isconsiderably simplified by the omission of the mechanism for graspingthe threads when stripping them from the tying-bill. In this modifiedform an oscillatory stripping-arm G has a bell-crank G in the cam-grooveB5 of the sector camgear B4. The cam-groove B5 in the modified form ismade straight at one end. Therefore it will be seen that thestripping-arm G will have a positive oscillatory movement backward andforward with relation to the tyingbill. When the thumb-lever B is in itsupward or normal position, the stripping-arm G will be adjacent to thetying-bill; but when the thumb-lever B is at its lowest position thestripping-arm G will stand at a little distance from the tying-bill. Thetension of the threads from the spools (not shown) and the friction ofsaid threads in the thread-guide of the oscillating stripper-arm G causethe knot to be tightened and said threads to be stripped from thetying-bill C2when the oscillating arm Gis moved outward from saidtying-bill. The operation of the modified form is the same ashereinbefore described.

I claim as my inventionl. In a knot-tying implement, in combination,mechanism for automatically forming a knot; means for securing saidmechanism to the hand ofthe operator; and means for manually operatingsaid automatic mechanism to form a knot.

2. In a knot tying implement, in combination, mechanism forautomatically forming a knot; means for securing said mechanism to thehand of the operator; and means for digitally operating said automaticmechanism to t'orm aknot.

3. In a knot-tyingimplement, in combination, mechanism for automaticallyforming a knot; means for securing said mechanism to the hand of theoperator; and a lever adapted to be manually operated, for operatingsaid automatic mechanism.

4. In a knot-tying implement, in combination, a knot-forming mechanism;means for securing said mechanism to the hand of the operator; and alever adapted to be digitally operated, for operating said knot-formingmechanism. i

5. In a knot-tying implement, in combination, a knot-forming mechanism;means for securing said mechanism to the hand of the operator; and meansadapted to be operated by a movement of a digit of the hand to which IOOIIO

the implement is secured, for operating said knot-forming mechanism.

6. In a knot-tying implement, in combination, a knot-forming mechanism;means for securing said mechanism to the hand of the operator; and'means adapted to be operated by a movement of the thumb of the hand towhich the implement is secured, for operating said knot-formingmechanism.

7. In a knot-tying implement, in combination, a knot-forming mechanism;means for securing said mechanism to the hand of the operator; and a'lever adapted to be operated 'bya movement of a digit of the hand towhich the implement is secured, for operating said knot-formingmechanism.

8. In a knot-tying implement, in combination, a knot-forming mechanism;means for securing said mechanism to the hand of Vthe operator; and alever adapted to be operated by a movement of the thumb of the hand towhich the implement is secured, for operatingsaid knot-formingmechanism.

9. In a knot-tying implement, in combination, a knot-forming mechanism;means for 'securing said mechanism to the hand of the operator; andapivoted arm adapted to be operated bya movement of the hand to which theimplement is secured, for operating said knot-forming mechanism.

l0. In av knot-tying implement, in combination,V a rotatable tying-bill;means forsecurving'said tying-bill'tothe hand ofthe operator;

and means 'adapted t0 be manually operated,

for rotating said tying-bill to form a knot.

11. In a knot-tyingimplemennin'combination, a rotatable tying-bill;means for'secur` ing said tying-bill to the hand of the'operator; andmeans adapted to be digitally operated' for rotating said tying-billtoform a knot.

12.Y In a knot-tying implement, in combination, a rotatable tying-bill;means for securing said tying-bill to the'hand of theoperator; and alever adapted to be manually operated for rotating said tying-bill.

13. In a knot-tyingim'plement, in combina- 'and means adapted to beoperated by a move- `ment of a digit of the hand to'which the implementis secured, for rotating said tyingbill.

15. In a knot-tying implement, in combination, a rotatable tying-bill;means for securing said tying-bill to the hand of the operator;

and means adapted to be operated by a movement of the thumb of the handto which the implement is secured, for rotating said tyingbill.

16.' In a knot-tying implement, in combination, a rotatable tying-bill;means for securing said tying-bill to the hand of the operator; and alever adapted to be operated by a movement of a digit of the hand towhich the implement vis secured, for rotating said tyingbill.

17. In a knot-tying implement, in combination, a rotatable tying-bill;means for securing said tying-bill to the hand of the operator; and alever adapted to be operated by a movement of the thumb of the hand towhich the implement is secured, for rotating said tyingbill.

18. In aknot-tying implement, in combination, a rotatable tying-bill;means for securing said tying-bill to the hand of the operator; and apivoted arm adapted to be operated by a movement of the hand to whichthe implement is secured, for rotating 'said tying-bill.

19. In a knot-tying implement, in combination, a knot-forming mechanism;means for securing said mechanism'to the hand of the operator;intermeshing gear for operating said knot-forming mechanism; and meansadapted to Vbe manually operated for driving said gear.

20. Ina knot-tying implement, in combination,'a knot-forming mechanism;means for. lsecuring said mechanism to the hand of 'the operator;intermeshing gear for operating said `knot-formingmechanism; andmeansfor digitally driving-said gear.

2l. In aknot-tying implement, incombination, Ia `knot-forming mechanism;means for `securingsaid mechanism to thehand of the operator;intermeshing Vgear `tor 'operating Said knot-forming mechanism; andalever adapted'tobe manually-operated for driving said gear.

22. In a'knot-tying implement, in'combination, la knot-formingmechanism; means 'for securing said mechanism to the hand of theoperator; intermeshing gear for-operating said knot-formingmechanismyand Valever adapted to be digitally operated for `driving saidgear. 23. In a knottyingimplement, in combination, a knot-formingmechanism; means for IOO IIO

securing-said mechansmto thehand of the said knot-forming mechan1ism;andmeans adapted to be operated by a movement of the thumb of the hand towhich 'the implement is secured, for driving said gear.

25. Ina knot-tying implement,`in'combina tion, a knot-forming mechanism;means for securingsaid mechanism to the hand of the operator;intermeshing gear for operating :said knot-forming mechanism; and alever IZO adapted to be operated by the movement of a digit of the handto which the implement is secured, for driving said gear.

26. In a knot-tying implement, in combination, a knot-forming mechanism;means for securing said mechanism to the hand of the operator;`intermeshing gear for operai ing said knot-forming mechanism; and alever adapted to be operated by a movement o the thumb of the hand towhich the implement is secured, for driving said gear.

27. In a knot-tying implement. in combination, a knot-forming mechanism;means for securing said mechanism to the hand of the operator;intermeshing gear for operating said knot-forming mechanism; and apivoted arm adapted to be operated `by a movement ofthe hand to whichthe implementis secured, for driving said gear.

28. In a knot-tying implement, in combination, a rotatable tying-bill;means for securing said tying-bill to the hand of the operator;intermeshing gear for rotating said tying-bill; and means adapted to bemanually operated for driving said gear.

29. In a knot-tyingimplement, in combination, a rotatable tying-bill;means for securing said tying-bill to the hand of the operator;intermeshing gear for rotating said tying-bill; and means adapted to bedigitally operated for driving said gear.

30. In a knot-tying implement, `in combination, a rotatable tying-bill;means for securing said tying-bill to the hand of the operator;intermeshing gear for rotating said tying-bill; and a lever adapted tobe manually operated for driving said gear.

3l. In a knot-tying implement, in combination, a rotatable tying-bill;means for securing said tying-bill to the hand of the operator;intermeshinggear for rotating said tying-bill; and a lever adapted to bedigitally operated for driving said gear.

32. In a knot-tying implement, in combination, a rotatable tying-bill;means torsecnring said tying-bill to the hand of the operator; intermeshing gearfor rotating said tying-bill; and means adapted to beoperated by the movement of a digit of the hand to which the implementis secured, for driving said gear.

33. In a knot-tying implement, in combination, a rotatable tying-bill;means for secu ring said tying-bill to the hand ot the operator;intermeshing gear for rotating said tying-bill; and means adapted to beoperated by a movement of the thumb of the hand to which the implementis secured, for driving said gear.

34. In a knot-tyingimplement, in combination, a rotatable tying-bill;means for securing said tying-bill to the hand of the operator;intermeshing gear for rotating said tying-bill; and a lever adapted tobe operated by a digit of the hand to which the implement is secured.for driving said gear.

35. In a knot-tyingimplement, in combination, a rotatable tying-bill;means for securing sai d tying-bill to the h and of the operator;intermeshi ng gear for rotal ing said tying-bill; and a lever adapted tobe operated by the thumb of the hand to which the implement is secured,for driving said gear.

36. In a knot-tyingimplement, in combination, a rotatable tying-bill;means for securing said tying-bill to the hand of the operator; intermeshin g gear for rotating said tying-bill; and a pivoted arm adapted tobe operated by a movement of the hand to which the implement is secured,for driving said gear.

37. In a knot-tying implement, in combination, a knot-forming mechanism;mechanism adapted to tighten the knot; means for securing saidknot-forming mechanism and said knot-tightening mechanism to the hand ofthe operator; and means adapted to be manually operated for operatingthe knot-forming mechanism and the mechanism for tightening the knot.

38. In a knot-tying implement, in combination, a knot-forming mechanism;mechanism adapted to tighten the knot means for securing saidknot-forming mechanism and said knot-tightening mechanism to the hand.of the operator; and means adapted to be operated by the movement of adigit of the hand to which the implement is secured, for operating theknot-forming mechanism and the knot-tightening mechanism.

39. In a knot-tying implement, in combination, a knot-forming mechanism;mechanism adapted to tighten the knot; means forsecuring saidknot-forming mechanism and said knot-tightening mechanism to the hand ofthe operator; and means adapted to be operated by the movement of thethumb of the hand to Which the implement is secured, for operating theknot-forming mechanism and the knot-tightening mechanism.

40. In a knot-tying implement, in combination, a knot-forming mechanism;mechanism adapted to tighten the knot; means for securing saidknot-forming mechanism and said knot-tightening mechanism to the hand ofthe operator; and a lever adapted to be moved by the thumb of the handto which the implement is secured, for operating the knotformingmechanism and the knot-tightening mechanism.

4:1. In a knot-tying implement, in combination, a knot-formingmechanism; mechanism adapted to tighten the knot; skew-gear foroperating said knot-forming mechanism; a cam for operating theknot-tightening mechanism; means for securing said mechanisms to thehand of the operator; and means for manually driving said gear andmoving said cam.

42. In a knot-tying implement, in combination, a knot-forming mechanism;mechanism adapted to tighten the knot; skew-gear for operating saidknot-forming mechanism; a cam for operating the knot-tighteningmechanism; means for securing said mechanisms to the hand of theoperator; and means adapted t0 be operated by a movement ofa digit ofthe hand to. which the implement is secured, for

. moving said skew-gear and said cam.

43. In a knot-tying implement, in combination, a knot-forming mechanism;mechanism adapted to tighten the knot; skew-gear for operating saidknot-forming mechanism; a cam for operati-ng the knot-tighteningmechanism;

means for securing said mechanisms to the hand of the operator;- and alever adapted to be operated by the movement of the thumb of the hand towhich the implement is secured, for moving said skew-gearand said cam.

44. lIn a knot-tying implement, in combination, a knot-formingmechanism; a thread- 'holding mechanism adapted to clamp the thread andtighten the knot; means for securing said mechanisms to the hand of theoperator; and means adapted to be operated by 4a digit of the hand towhich the implement is secured, for operating the knot-forming mechanismto form a knot, and for moving said thread-holding mechanism relativelyto the knot-forming mechanism/to draw up the slack in the thread totighten the knot.

45. In a knot-tying implement, in combination, a knot-forming mechanism;a thread- `holding arm adapted to clamp the thread and `m'ove away fromthe knot-formingmechanism to draw up the slack in the thread to tightenthe knot; means for securing said mechanisms to the hand ofthe operator;and means adapted to be operated by a digit of the hand to which theimplement is secured, for operating the knot-forming mechanism to form aknot, and for operating said thread-holding arm.

46. In a knot-tying implement, in combination, a knot-forming mechanism;an oscillamechanism adapted to clamp the thread, to Vstrip the threadfrom the tying-bill and to draw up the slack therein to tighten theknot; means for securing said mechanism to the hand ofthe operator; andmeans adapted to be operated by a digit of the hand to which theimplement is secured, for rotating said vtying-bill and for operatingsaid thread-holding mechanism.

48. In a knot-tyingimplement, in combination,a rotatable tying-billintermeshing gear for `rot-ating said tying-bill; an oscillatory-th-read holding arm adapted `to clamp the thread and move away from thetying-bill to strip the thread from the tying-bill and draw up the slackin the thread to tighten the knot;

means for securing said meehan-ismsto the hand of the operator; andmeans adapted to be operated by a digit of the hand to which theimplement is secu red,for driving said gear and for moving said arm.

49. In a knot-tying implement, in combination, a knot-forming mechanism;means for operating said mechanism to'fo-rm a knot; an oscillatoryshaft; a thread -holding arm loosely mounted thereon, but capable ofbeing held with relation thereto; means for clamping the thread to saidyarm; means'for releasably holding said arm with relation to said shaft,so it willl rotate therewith; and m'eans for oscillating said shaft andmoving Said arm away from the knot-formingmechanism to tighten the knot.l

50. In a knot-tying implement, incombination, a knot-forming mechanism;means-for operating said mechanism to form a knot; an oscillatory shaft;a thread-holdingarm loosely mounted on said shaft but capable of beinglocked with relation thereto; means for clam ping the thread to saidarm; means for oscillating said arm; and a latch for locking said armwith relation to said shaft.

51. In a knot-tying-implement, in combination, a tying-bill; means forrotating said tying-bill; an oscillatory shaft; athread-holding armloosely mounted on said shaft, but capable of being held with relationthereto,

`which arm is adapted to clamp the thread and move away from thetying-bill to draw up the ing said bill; an oscillatory shaft; athreadholding arm loosely mounted on said shaft, but capable of beinglocked with relation thereto; a clamp for holding the thread to saidarm; means for oscillating said shaft; means for releasably locking saidarm 'with relation to said shaft; and -means for operating saidthread-clamp.

53. In a knot-tying implement, in combination, a rotatable tying-bill;means for rotating said bill; an oscillatory'shaft; a threadholding armloosely mounted on said shaft, but capable of being locked with relationthereto; means for clamping the thread to said arm; and means forreleasably locking said arm with relation to said shaft, and forreleasingsaid arm from movement with said shaft. g

54. In a knot-tying implement, in combination, a rotatable tying-bill;means for rotating said bill; an oscillatory shaft; a threadholding armloosely mounted on said shaft, but capable of being locked with relationthereto; an arm rigidly fixed to said oscillatory shaft; means forreleasably locking said'thread-holding arm in engagement with IIO saidlast-mentioned arm; means for clamping the thread to said thread-holdingarm; and

tion, a tying-bill; means for rotating said tying-bill; an oscillatoryshaft; a thread-holding arm loosely7 mounted on said shaft; an arm fixedon said oscillatory shaft; a springlatch for connecting saidthread-holding arm to said last-mentioned arm; means for disengagingsaid spring-latch; a clamp for the thread, on said thread-holding arm; acam for oscillating` said shaft; and an arm fixed on said shaft, forengaging said cam.

57. In-a knot-tyingimplement, in combination, a tying-bill; a shearingand clamping jaw for said bill; a cam for operating said jaw; a gear forrotating said bill; an oscillatory shaft; a cam for moving said shaft; athread-holding arm loosely mounted on said oscillatory shaft; an armfixed on said oscillatory shaft; a spring-latch for engaging saidthread-holding arm With said last-mentioned arm and a clamp for thethread, on the threadholding arm.

58. In a knot-tyingimplement, in combination, a tying-bill; intermeshinggear for rotating said tying-bill; an oscillatory shaft; a

(thread-holding arm loosely mounted on said shaft; an arm fixed on saidoscillatory shaft; a spring-latch for connecting said threadholding armto said last-mentioned arm;

means for releasing said latch; clamping-fingers for the thread, havinga sliding engagement with the thread-holding arm, and a pivotalengagement with the before-mentioned `arm fixed on said oscillatoryshaft; acam for `stop projection for disengaging said latch: a

spring extending between the thread-holding arm and the said arm fixedon the oscillatory shaft; clam ping-fingers for the thread, having asliding engagement with said threadholding arm, and a pivotal engagementwith the arm fixed on said oscillatory shaft; a cam `for oscillatingsaid shaft; an arm fixed on said-shaft, for engaging said cam; means forattaching mechanism to thehand of the operator; and a pivotal thunib-lever for operating said mechanism.

60. In aknot-tyingimplement, in combination, a knot-forming mechanism; athreadholding mechanism adapted to clamp the thread to tighten the knot;means for securing said mechanisms to the hand of the operator; andmeans for manually operating the knot-forming` mecha nism and thethread-holding mechanism.

6l. In a knot-tyingimplement, in combination, a knot-forming mechanism;a threadholding mechanism adapted to clamp the thread to tighten theknot; means for securing` said mechanisms to the hand of the `operator;and means for digitally operating the p k not-forming m echanism and theth read-h 01d ing mechanism.

62. In a knot-tying implement, in combination, a knot-forming mechanism;a threadholding mechanism adapted to clamp the thread to tighten theknot; means for seen ring said mechanisms to the hand of the operator;and a lever adapted to be manually operated, for operating theknot-forming mechanism and the thread-holding mechanism.

63. In a knot-tyingimplement, in combination, a knot-forming mechanism;a threadholding mechanism adapted to clamp the thread to tighten theknot; means for securing said mechanisms to the hand ot' the operator;and a lever adapted to be digitally operated, for operating theknot-forming mechanism and the thread-holding mechanism.

64. In a knot-tyingimplement, in combination, a knot-forming mechanism;a threadholding mechanism adapted to clamp the thread to tighten theknot; means forsecuring said mechanisms to the hand of the operator; andmeans adapted to be operated by a movement of a digit of the hand towhich the implement is secured, for operating the knot.- formingmechanism and the thread-holding mechanism.

65. In a knot-tying implement, in combination, a knot-forming mechanism;a threadholding mechanism adapted to clamp the thread to tighten theknot; means for securing said mechanisms to the hand of the operator;and means adapted to be operated by a movement of the thumb of the handto which the implement is secured, for operatingy the knot-formingmechanism and the thread-holding mechanism.

66. In aknot-tyingimplement, in combination, a knot-forming mechanism; athreadholding mechanism adapted to clamp the thread and tighten theknot; means forsecuring said mechanisms to the hand of the operator; andmeans adapted to be operated by a digit of the hand to which theimplement is secured, for operating the knot-forming mechanism to formthe knot, and the thread-holding mechanism to hold the thread and drawup the slack therein to tighten the knot.

67. In a knot-tying implement, in com-bina- IOO IIO

8 i lcrasse tion, a knot-forming mechanism; a threadholding mechanismadapted to clamp the thread to tighten the knot; means for secu ringsaid mechanisms to the hand of the operator; and a lever adapted to beoperated by a digit of the hand to which the implement is secured foroperating the knot-forming mechanism and the thread-holding mechanism.

68. In aknot-tying implement, in combination, a knot-forming mechanism;a threadholding mechanism adapted to clamp the thread to tighten theknot; means for securing said mechanisms to the hand of the operator;and a lever adapted to be operated by the thumb of the hand to which theimplement is secured, for operating the knot-forming mechanism and thethread-holding mechanism.

69. In a knot-tying implement, in combination, a knot-forming mechanism;a threadholding mechanism adapted to clamp the thread to tighten theknot; means for securing said mechanisms to the hand of the operator;and a pivoted arm adapted to be operated by a movement of the hand towhich the implement is secured, for operating the knotforming mechanismand the thread-holdingv mechanism.

70. In aknot-tying implement, in combination, a knot-forming mechanism;a threadholding mechanism adapted to clamp the thread and tighten theknot; means for secu ring said mechanisms to the hand of the operator;and means for manually operating the knot-forming mechanism, and formoving the' thread-holding mechanism relatively to the knot-formingmechanism.

7l. In aknot-tying implement, in combination, a knot-forming mechanism;a threadholdingl mechanism adapted to clamp the 1 thread and tighten theknot; means for securing said mechanisms to the hand of the operator;and means for Adigitally operating the knot-forming mechanism, and formoving the thread-holding mechanism relatively to the knot-formingmechanism.

72. In a knot-tying implement, in combination, a knot-forming mechanism;means for manually operating'said knot-forming mechanism to form a knot;a thread-holding armL adapted to clamp the thread and move away 74.Inaknot-tying implement, in combination, a 'knot-forming mechanism; athreadholding mechanism adapted to clamp the thread and tighten theknot; means for securing said mechanisms to the hand of the operator;and an arm for manually operating the knotforming mechanism and thethreadholding mechanism.

75. In aknot-tying implement, in combination, a knot-forming mechanism;means for manually operating said mechanism to form a knot; anoscillatory shaft; a thread-holding arm loosely mounted thereon; meansfor clamping the thread to said arm; means manually operated foroscillating said shaft and moving said arm away from the knot-formingmechanism to tighten the knot; and means for securing the knot-formingmechanism to the hand of the operator.

76. In a knot-tying implement, in combination, a knot-forming mechanism;means for digitally operatingsaid mechanism to form` a knot; anoscillatory shaft; a thread-holding arm loosely mounted thereon; meansfor clamping the thread to said arm; means digitally operated foroscillating said shaft and moving said arm away from the knot-foriningmechanism to tighten the knot; and means for securing the-knot-formingmechanism to the hand of the operator.

77. In a knot-tying implement, in combination, a knot-forming mechanism;a lever adapted to be manually operated for operating said mechanism toform a knot; an oscillatory shaft; a thread-holding mechanism looselymounted thereon; means for clamping the thread to Vsaid arm; meansmanually operated for oscillating said shaft and moving said arm awayfrom the knot-forming mechanism to tighten the knot; and means forsecuring the knot-forming mechanism to the hand of the operator.

78. In a knot-tying implement, in combination, a rotatable tying-bill; athread-holding mechanism adapted to strip the thread from the tying-billand tighten the knot; means for securing said mechanisms to the hand ofthe operator; and a lever adapted to be operated by a movement of thehand to Which the implement is secured, for operating said threadholdingmechanism.

79. In a knot-tying implement, in combination, a rotatable tying-bill; athread-holding mechanism adapteditostrip the thread from the tying-billand tighten the knot; skewgear for rotating said tying-bill; means foroperating the knot-tightening mechanism; means for securing theimplement to the hand of the operator; and a lever adapted to beoperated by a movement'of the hand to Which the .implement is secured,for driving the skew-gear and the means for operating theknot-tightening mechanism.

80. In a knot-tying implement, in combination, a rotatable tying-bill;intermeshing skew-gear for rotating said tying-bill; means IOO forsecuring the implement to the hand of the operator; and a pivoted armadapted to erator; and a thumb-lever adapted to be be operated by amovement of the hand to moved by the thumbof the operator, for driv- 1owhich the implement is secured, for driving ing said skew-gear.

said skew-gear.

81. In aknot-tyingimplement, in combina- HOWARD D' COLMAN tion, aJying-bi 1l; in bermeshing skew-gear fol` Witnesses: rotating saidtying-bill; a hand-loop for se- FRANK A. TICKNOR, curing the implementto the hand of the op- RICHARD F. LOCKE.

